From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755987AbbAHISx (ORCPT ); Thu, 8 Jan 2015 03:18:53 -0500 Received: from mail-we0-f181.google.com ([74.125.82.181]:58627 "EHLO mail-we0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754005AbbAHISL (ORCPT ); Thu, 8 Jan 2015 03:18:11 -0500 From: "Lad, Prabhakar" To: LFBDEV , Jean-Christophe Plagniol-Villard , Tomi Valkeinen , Maxime Ripard Cc: LKML , "Lad, Prabhakar" Subject: [PATCH 2/2] fbdev: ssd1307fb: check return value while setting offset Date: Thu, 8 Jan 2015 08:17:59 +0000 Message-Id: <1420705079-3741-3-git-send-email-prabhakar.csengg@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1420705079-3741-1-git-send-email-prabhakar.csengg@gmail.com> References: <1420705079-3741-1-git-send-email-prabhakar.csengg@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org this patch checks the return value of write command while setting the display offset. Signed-off-by: Lad, Prabhakar --- drivers/video/fbdev/ssd1307fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c index 70e3ce8..a7ecaa6 100644 --- a/drivers/video/fbdev/ssd1307fb.c +++ b/drivers/video/fbdev/ssd1307fb.c @@ -342,7 +342,7 @@ static int ssd1307fb_ssd1306_init(struct ssd1307fb_par *par) /* set display offset value */ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_DISPLAY_OFFSET); - ret = ssd1307fb_write_cmd(par->client, 0x20); + ret = ret & ssd1307fb_write_cmd(par->client, 0x20); if (ret < 0) return ret; -- 1.9.1